Файл: public/captcha.php
Строк: 24
<?php
session_start();
ob_start();
if (empty($_SESSION['rand_code'])) {
$string = '';
for ($i = 0; $i < 5; $i++) {
// this numbers refer to numbers of the ascii table (lower case)
$string .= chr(rand(97, 122));
}
$_SESSION['rand_code'] = $string;
$_SESSION['captcha_time'] = time() + 600;
}
if (isset($_GET['reset']) OR $_SESSION['captcha_time'] < time()) {
$string = '';
for ($i = 0; $i < 5; $i++) {
// this numbers refer to numbers of the ascii table (lower case)
$string .= chr(rand(97, 122));
}
$_SESSION['rand_code'] = $string;
$_SESSION['captcha_time'] = time() + 600;
}
$dir = 'fonts/';
$image = imagecreatetruecolor(100, 60);
$black = imagecolorallocate($image, 0, 0, 0);
$color = imagecolorallocate($image, 200, 100, 90); // red
$white = imagecolorallocate($image, 255, 255, 255);
imagefilledrectangle($image,0,0,399,99,$white);
imagettftext ($image, 20, 0, 10, 40, $color, $dir."arial.ttf", $_SESSION['rand_code']);
header("Content-type: image/png");
imagepng($image);
?>